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when to plant cannabis seeds outdoors uk

South-east: This region experiences cold, biting winters along with warm, dry, and pleasant summers. Continental winds keep things relatively dry in general. South-east UK encompasses London, Brighton, Cambridge, and Norwich.

April brings a significant improvement in weather and sunlight. Bluebells, wild garlic, and other aromatic spring flowers lead the charge of emerging plant life. Although April brings a nice, warm heat, frost still poses a significant risk. Growers in most regions will need to keep their plants indoors under lights and on windowsills for a couple more weeks to be safe. However, cultivators with greenhouses or polytunnels will be able to safely move their plants to these structures during April.


Below, we’ll generalise and focus on the south-east, south-west, north-east, and north-west, while touching on specific locations along the way. It’ll help if you do a little more research on your specific area just to make sure you have all the bases covered.

North-west: The north-west experiences mild winters and cool summers. Maritime winds bring a whole load of rain all year round. This region covers Northern Ireland, northern Wales, and western Scotland.

March marks the official start of spring. However, things are still pretty chilly in most of the country. But this doesn’t mean growers can’t get a head start indoors. Start germinating your seeds and placing emerging seedlings under LED lights or on a sunny windowsill.

If you have an indoor growing cabinet and are not using it, you must get it ready since are going to start using very soon.

the rotting of the buds


At the end of this month, in almost all northern European countries it is safe to take the plants outdoors, but perhaps it’s convenient to put them in the night in order to not end up frozen, since nighttime temperatures are still low.

Learn all the details about the art of outdoor growing

I will be delighted to read your comments and suggestions, together we may shape the best Calendar for outdoor marijuana growing in Europe